Are you talking by bus or car?
We rode the bus, and you can wait up to 20 minutes for one to get there, and then there's a good 15 minute ride to MK & Epcot. AK is probably 5 minutes away, and MGM is about 10 (if I'm remembering correctly). The longest wait was just waiting for the buses to get there. We always had the bad luck of just missing the previous bus and having to wait for the next.